This obviously has been pointed out numerous times that "inappropriate language" is a locker room norm and it is a joke of an excuse by Nebraska.
I will tell my own personal little story. I played college football and during my freshman year, a new DC was brought in. For the first 2 weeks of camp, he called everyone a f**k, f**ker, f**kstick, f**king POS, and any other variation of the F word that can be used. I was on offense but my roommate played D and told me what happened when they were watching film one evening with the new DC. About every play he was calling out someone for not doing something right, ex. "You f**kin dumb a$$, fill the gap, and you (using the laser pointer to identify them) you little f**ker, get your damn head in front and wrap up." As he was mid-rant yelling this stuff, a lightbulb goes off in his head and he stops, pauses, and says "damnit, what are your f**king names!?" The whole meeting room lost it and we could hear them laughing 2 rooms over.
This is football